Calamintha nepeta ssp. nepeta is a vigorous bloomer with clouds of light blue flowers from summer to fall. Flowers and foliage are aromatic.

Camassia cusickii has star-shaped, pale icy blue flowers on stems from two to three feet in height.

Camassia cusickii 'Zwanenburg' has two to three foot spires adorned with royal blue stars.

Camassia leichtilinii or great camas produces elegant spires with masses of star-shaped blue flowers with yellow anthers.

Camassia leichtlinii 'Blue Heaven' has elegant spires covered with masses of star-shaped icy blue flowers.

Camassia leichtlinii 'Caerulea' has elegant spires covered with masses of star-shaped blue to lavender-blue flowers.

Camassia quamash is a gorgeous true blue BC native with starry lily-like flowers on slender stems.

Camassia quamash 'Blue Melody' is a gorgeous true blue BC native with starry lily-like flowers atop variegated foliage with white edges.

Camassia quamash 'Orion' is a gorgeous selection of our true blue BC native with starry flowers on tall spires.

Campanula glomerata 'Church Bells' is a clustered bellflower with large clusters of well formed violet-blue flowers.

Campanula glomerata 'Emerald' has unique sky blue flowers with occasional darker flecks of purple-blue along the edges of the petals.

A clustered bellflower with an extended bloom period.

A clustered bellflower with an extended bloom period.

Campanula persicifolia 'La Belle' is a peachleaf Bellflower double ruffled flowers in sky blue and dark green evergreen leaves.

Campanula poscharskyana 'Blue Waterfall' offers masses of starry blue flowers from spring to fall.

Campanula rotundifolia is a widespread harebell found throughout temperate regions of the northern hemisphere.

Campanula Iridescent Bells is a floriferous bellflower with large, tubular, bell-shaped, silver blue flowers from purple buds.

'Summertime Blues' is said to be the longest-blooming upright bellflower graces the garden from spring through fall with silvery lavender-blue bells.

Attractive variegated flowers topped with blue flowers.

Caryopteris x clandonensis ‘Beekeeper’ is a compact bluebeard with blue flowers and golden-green foliage.

Caryopteris Grand Blue produces masses or rich blue flowers which delight humans and bees and butterflies alike.

Masses or rich blue flowers atop dramatic silver foliage.

Ceanothus griseus var. horizontalis 'Diamond Heights' is a low-growing, ground covering California lilac with gold foliage.